1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
|
<!doctype html public "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<HTML>
<HEAD>
<TITLE>nevrax.org : docs</TITLE>
<LINK REL=stylesheet TYPE="text/css" HREF="/inc/css/nevrax.css">
<link href="doxygen.css" rel="stylesheet" type="text/css">
</HEAD>
<BODY MARGINHEIGHT="0" MARGINWIDTH="0">
<!-- uplinks -->
<TABLE CELLSPACING=0 CELLPADDING=0 BORDER=0>
<TR>
<TD WIDTH=16><IMG SRC="/inc/img/pixel.gif" WIDTH="16" HEIGHT="16" BORDER=0 ALT=""></TD>
<TD WIDTH=140 BGCOLOR=#dddddd><IMG SRC="/inc/img/pixel.gif" WIDTH="140" HEIGHT="16" BORDER=0 ALT=""></TD>
<TD WIDTH=16><IMG SRC="/inc/img/pixel.gif" WIDTH="16" HEIGHT="16" BORDER=0 ALT=""></TD>
<TD><IMG width=6 height=14 SRC="/inc/img/reddots.gif" ALT="#" VSPACE=2 HSPACE=2 BORDER=0 ></TD><TD VALIGN=middle> <A CLASS=uplinks HREF=><b>Home</B></FONT></A> </TD>
<TD><IMG width=6 height=14 SRC="/inc/img/reddots.gif" ALT="#" VSPACE=2 HSPACE=2 BORDER=0 ></TD><TD VALIGN=middle> <A CLASS=uplinks HREF=><b>nevrax.com</B></FONT></A> </TD>
</TR>
</TABLE>
<!-- banner Nevrax -->
<TABLE CELLSPACING=0 CELLPADDING=0 BORDER=0 WIDTH=100%>
<TR><TD BGCOLOR="#000000" BACKGROUND="/inc/img/black_banner.jpg"><A HREF=""><IMG SRC="/inc/img/nevrax.gif" WIDTH="170" HEIGHT="45" BORDER=0 ALT="Nevrax" ></A></TD></TR>
</TABLE>
<!-- main table -->
<TABLE CELLSPACING=0 CELLPADDING=0 BORDER=0 height=100%>
<TR>
<TD WIDTH=16><IMG SRC="/inc/img/pixel.gif" WIDTH="16" HEIGHT="10" BORDER=0 ALT=""></TD>
<TD WIDTH=140 BGCOLOR=#dddddd VALIGN=TOP ALIGN=middle><IMG SRC="/inc/img/pixel.gif" WIDTH="140" HEIGHT="10" BORDER=0 ALT="">
<!------ Begin Box ------>
<TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0 BGCOLOR=black><TR><TD><TABLE border=0 cellspacing=2 cellpadding=0 width=120><tr><TD ALIGN=middle bgcolor=black>
<FONT COLOR=white FACE="sans-serif"><B>Nevrax.org</B></FONT></TD></TR><tr><td colspan=2 bgcolor=#FFFFFF>
<TABLE cellspacing=0 cellpadding=1 border=0>
<tr><td ALIGN=middle><a class='linkbox' href="/news/" TITLE="Rubrique news"><img width=13 height=15 hspace=5 border=0 src=/inc/img/picto-news.gif ALT=#></A></td><td><a class='linkbox' href="/news/" TITLE="News">News</a></td></tr>
<tr><td ALIGN=middle><a class='linkbox' href="/mail/" TITLE="Rubrique mail"><img width=15 height=11 hspace=5 border=0 src=/inc/img/picto-mail.gif ALT=#></A></td><td><a class='linkbox' href="/mail/" TITLE="Mailing list archive">Mailing-list</a></td></tr>
<tr><td ALIGN=middle><a class='linkbox' href="/docs/" TITLE="Rubrique docs"><img width=14 height=16 hspace=5 border=0 src=/inc/img/picto-docs.gif ALT=#></A></td><td><a class='linkbox' href="/docs/" TITLE="Documentation">Documentation</a></td></tr>
<tr><td ALIGN=middle><a class='linkbox' href="/cvs/" TITLE="Rubrique cvs"><img width=13 height=17 hspace=5 border=0 src=/inc/img/picto-cvs.gif ALT=#></A></td><td><a class='linkbox' href="/cvs/" TITLE="CVS Web">CVS</a></td></tr>
<tr><td ALIGN=middle><a class='linkbox' href="/bugs/" TITLE="Rubrique bugs"><img width=20 height=16 hspace=5 border=0 src=/inc/img/picto-bugs.gif ALT=#></A></td><td><a class='linkbox' href="/bugs/" TITLE="Bugtracking">Bugs</a></td></tr>
<tr><td ALIGN=middle><a class='linkbox' href="/GPL.php3" TITLE="Rubrique license"><img width=18 height=12 hspace=5 border=0 src=/inc/img/picto-gpl.gif ALT=#></A></td><td><a class='linkbox' href="/GPL.php3" TITLE="License">License</a></td></tr>
</TABLE>
</TD></TR></TABLE></TD></TR></TABLE>
<!------ End Box ------>
</TD>
<TD WIDTH=15><IMG SRC="/inc/img/pixel.gif" WIDTH="16" HEIGHT="16" BORDER=0 ALT=""></TD>
<TD ALIGN=left valign=top><IMG SRC="/inc/img/pixel.gif" WIDTH="140" HEIGHT="10" BORDER=0 ALT="">
<!-- title -->
<TABLE background="/inc/img/redline.gif" CELLSPACING=0 CELLPADDING=0 BORDER=0 width=100%><tr><td>
<A HREF="/docs/"><img src="/inc/img/t_docs.gif" ALT="Docs" HEIGHT=20 BORDER=0></A>
</td><td><IMG SRC="/inc/img/pixel.gif" WIDTH="1" HEIGHT="1" BORDER=0 ALT="">
</td></tr></table>
<!-- block -->
<TABLE bgcolor="#dddddd" CELLSPACING=0 CELLPADDING=0 BORDER=0 width=100%><tr><td width=1% valign=middle><img width=6 height=14 hspace=2 vspace=2 src="/inc/img/reddots.gif"></TD>
<TD><B>Documentation</B></TD>
<TD ALIGN=RIGHT> </td>
</tr></table>
<!-- Generated by Doxygen 1.2.14 -->
<center>
<a class="qindex" href="index.html">Main Page</a> <a class="qindex" href="namespaces.html">Namespace List</a> <a class="qindex" href="hierarchy.html">Class Hierarchy</a> <a class="qindex" href="classes.html">Alphabetical List</a> <a class="qindex" href="annotated.html">Compound List</a> <a class="qindex" href="files.html">File List</a> <a class="qindex" href="namespacemembers.html">Namespace Members</a> <a class="qindex" href="functions.html">Compound Members</a> <a class="qindex" href="globals.html">File Members</a> <a class="qindex" href="pages.html">Related Pages</a> <a class="qindexRef" doxygen="_cgi:/cgi-bin/nel-search.cgi" href="/cgi-bin/nel-search.cgi">Search</a> </center>
<hr><h1>quad_grid_clip_manager.cpp</h1><a href="quad__grid__clip__manager_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001
00007 <font class="comment">/* Copyright, 2001 Nevrax Ltd.</font>
00008 <font class="comment"> *</font>
00009 <font class="comment"> * This file is part of NEVRAX NEL.</font>
00010 <font class="comment"> * NEVRAX NEL is free software; you can redistribute it and/or modify</font>
00011 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
00012 <font class="comment"> * the Free Software Foundation; either version 2, or (at your option)</font>
00013 <font class="comment"> * any later version.</font>
00014 <font class="comment"></font>
00015 <font class="comment"> * NEVRAX NEL is distributed in the hope that it will be useful, but</font>
00016 <font class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00017 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
00018 <font class="comment"> * General Public License for more details.</font>
00019 <font class="comment"></font>
00020 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
00021 <font class="comment"> * along with NEVRAX NEL; see the file COPYING. If not, write to the</font>
00022 <font class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</font>
00023 <font class="comment"> * MA 02111-1307, USA.</font>
00024 <font class="comment"> */</font>
00025
00026 <font class="preprocessor">#include "<a class="code" href="std3d_8h.html">std3d.h</a>"</font>
00027
00028 <font class="preprocessor">#include "<a class="code" href="quad__grid__clip__manager_8h.html">3d/quad_grid_clip_manager.h</a>"</font>
00029 <font class="preprocessor">#include "<a class="code" href="scene_8h.html">3d/scene.h</a>"</font>
00030 <font class="preprocessor">#include "<a class="code" href="transform__shape_8h.html">3d/transform_shape.h</a>"</font>
00031 <font class="preprocessor">#include "<a class="code" href="clip__trav_8h.html">3d/clip_trav.h</a>"</font>
00032 <font class="preprocessor">#include "<a class="code" href="aabbox_8h.html">nel/misc/aabbox.h</a>"</font>
00033 <font class="preprocessor">#include "<a class="code" href="cluster_8h.html">3d/cluster.h</a>"</font>
00034 <font class="preprocessor">#include "<a class="code" href="skip__model_8h.html">3d/skip_model.h</a>"</font>
00035
00036
00037 <font class="keyword">using</font> <font class="keyword">namespace </font>std;
00038 <font class="keyword">using</font> <font class="keyword">namespace </font>NLMISC;
00039
00040
00041 <font class="keyword">namespace </font>NL3D
00042 {
00043
00044
00045 <font class="comment">// ***************************************************************************</font>
<a name="l00046"></a><a class="code" href="classNL3D_1_1CQuadGridClipManager.html#a0">00046</a> CQuadGridClipManager::CQuadGridClipManager()
00047 {
00048 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o0">_Scene</a>= NULL;
00049 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o1">_ClusterSize</a>= 0;
00050 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o4">_X</a>= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o5">_Y</a>= 0;
00051 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o6">_Width</a>= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o7">_Height</a>= 0;
00052 }
00053 <font class="comment">// ***************************************************************************</font>
<a name="l00054"></a><a class="code" href="classNL3D_1_1CQuadGridClipManager.html#a1">00054</a> CQuadGridClipManager::~CQuadGridClipManager()
00055 {
00056 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#a3">reset</a>();
00057 }
00058
00059
00060 <font class="comment">// ***************************************************************************</font>
<a name="l00061"></a><a class="code" href="classNL3D_1_1CQuadGridClipManager.html#a2">00061</a> <font class="keywordtype">void</font> CQuadGridClipManager::init(CScene *scene, <font class="keywordtype">float</font> clusterSize, std::vector<float> maxDists, <font class="keywordtype">float</font> radiusMax )
00062 {
00063 <font class="comment">// reset first.</font>
00064 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#a3">reset</a>();
00065
00066 <font class="comment">// copy params.</font>
00067 <a class="code" href="debug_8h.html#a6">nlassert</a>(clusterSize>0);
00068 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o0">_Scene</a>= scene;
00069 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o1">_ClusterSize</a>= clusterSize;
00070 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o3">_MaxDists</a>= maxDists;
00071 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o2">_RadiusMax</a>= radiusMax;
00072
00073 <font class="comment">// verify growing order.</font>
00074 <font class="keywordtype">float</font> prec= 0;
00075 <font class="keywordflow">for</font>(uint i=0; i<<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o3">_MaxDists</a>.size(); i++)
00076 {
00077 <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o3">_MaxDists</a>[i] > prec);
00078 prec=<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o3">_MaxDists</a>[i];
00079 }
00080 }
00081
00082 <font class="comment">// ***************************************************************************</font>
<a name="l00083"></a><a class="code" href="classNL3D_1_1CQuadGridClipManager.html#a3">00083</a> <font class="keywordtype">void</font> CQuadGridClipManager::reset()
00084 {
00085 <font class="comment">// delete the clusters.</font>
00086 <font class="keywordflow">if</font>(_Scene)
00087 {
00088 sint oldX0, oldX1, oldY0, oldY1;
00089
00090 oldX0= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o4">_X</a>;
00091 oldX1= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o4">_X</a>+<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o6">_Width</a>;
00092 oldY0= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o5">_Y</a>;
00093 oldY1= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o5">_Y</a>+<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o7">_Height</a>;
00094
00095 <font class="keywordflow">for</font>(sint <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>=oldY0; <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a><oldY1; <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>++)
00096 {
00097 <font class="keywordflow">for</font>(sint <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>=oldX0; <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a><oldX1; <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>++)
00098 {
00099 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#c0">deleteCaseModels</a>((CClipTrav*)<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o0">_Scene</a>->getTrav(<a class="code" href="namespaceNL3D.html#a25">ClipTravId</a>), <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>,<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>);
00100 }
00101 }
00102
00103 <font class="comment">// clear the grid.</font>
00104 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o8">_QuadGridClusterCases</a>.clear();
00105 }
00106
00107 <font class="comment">// reset others params.</font>
00108 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o3">_MaxDists</a>.clear();
00109 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o0">_Scene</a>= NULL;
00110 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o1">_ClusterSize</a>= 0;
00111 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o4">_X</a>= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o5">_Y</a>= 0;
00112 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o6">_Width</a>= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o7">_Height</a>= 0;
00113 }
00114
00115 <font class="comment">// ***************************************************************************</font>
<a name="l00116"></a><a class="code" href="classNL3D_1_1CQuadGridClipManager.html#a4">00116</a> <font class="keywordtype">void</font> CQuadGridClipManager::updateClustersFromCamera(CClipTrav *pClipTrav, <font class="keyword">const</font> CVector &camPos)
00117 {
00118 sint newX0, newX1, newY0, newY1;
00119 sint oldX0, oldX1, oldY0, oldY1;
00120
00121 oldX0= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o4">_X</a>;
00122 oldX1= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o4">_X</a>+<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o6">_Width</a>;
00123 oldY0= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o5">_Y</a>;
00124 oldY1= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o5">_Y</a>+<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o7">_Height</a>;
00125
00126 <font class="comment">// compute the new square of clusters to build.</font>
00127 newX0= (sint)floor( (camPos.x - <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o2">_RadiusMax</a>) / <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o1">_ClusterSize</a>);
00128 newX1= (sint)ceil( (camPos.x + <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o2">_RadiusMax</a>) / <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o1">_ClusterSize</a>);
00129 newY0= (sint)floor( (camPos.y - <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o2">_RadiusMax</a>) / <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o1">_ClusterSize</a>);
00130 newY1= (sint)ceil( (camPos.y + <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o2">_RadiusMax</a>) / <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o1">_ClusterSize</a>);
00131
00132 <font class="comment">// keep an histeresis of one cluster: do not delete "young" clusters created before.</font>
00133 <font class="keywordflow">if</font>(newX0>= oldX0+1) <font class="comment">// NB: if newX0==oldX0+1, then newX0= _X => no change.</font>
00134 newX0--;
00135 <font class="keywordflow">if</font>(newY0>= oldY0+1) <font class="comment">// same reasoning.</font>
00136 newY0--;
00137 <font class="keywordflow">if</font>(newX1<= oldX1-1) <font class="comment">// NB: if newX1==oldX1-1, then newX1= oldX1 => no change.</font>
00138 newX1++;
00139 <font class="keywordflow">if</font>(newY1<= oldY1-1) <font class="comment">// same reasoning.</font>
00140 newY1++;
00141
00142 <font class="comment">// Have we got to update the array.</font>
00143 <font class="keywordflow">if</font>(newX0!=oldX0 || newX1!=oldX1 || newY0!=oldY0 || newY1!=oldY1)
00144 {
00145 sint <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>,<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>;
00146
00147 <font class="comment">// delete olds models.</font>
00148 <font class="comment">// simple: test all cases</font>
00149 <font class="keywordflow">for</font>(<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>=oldY0; <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a><oldY1; <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>++)
00150 {
00151 <font class="keywordflow">for</font>(<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>=oldX0; <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a><oldX1; <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>++)
00152 {
00153 <font class="comment">// if out the new square?</font>
00154 <font class="keywordflow">if</font>(x<newX0 || x>=newX1 || y<newY0 || y>=newY1)
00155 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#c0">deleteCaseModels</a>(pClipTrav, <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>,<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>);
00156 }
00157 }
00158
00159 <font class="comment">// build new array</font>
00160 <font class="comment">// satic for alloc optimisation.</font>
00161 <font class="keyword">static</font> vector<CQuadGridClusterCase> newQuadGridClusterCases;
00162 sint newWidth= newX1-newX0;
00163 sint newHeight= newY1-newY0;
00164 newQuadGridClusterCases.resize(newWidth * newHeight);
00165 <font class="comment">// simple: test all cases</font>
00166 <font class="keywordflow">for</font>(<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>=newY0; <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a><newY1; <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>++)
00167 {
00168 <font class="keywordflow">for</font>(<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>=newX0; <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a><newX1; <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>++)
00169 {
00170 CQuadGridClusterCase &newCase= newQuadGridClusterCases[ (<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>-newY0)*newWidth + (<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>-newX0) ];
00171
00172 <font class="comment">// if out the old square?</font>
00173 <font class="keywordflow">if</font>(x<oldX0 || x>=oldX1 || y<oldY0 || y>=oldY1)
00174 {
00175 <font class="comment">// build new case. Clusters are empty.</font>
00176 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#c1">newCaseModels</a>(newCase);
00177 }
00178 <font class="keywordflow">else</font>
00179 {
00180 <font class="comment">// copy from old.</font>
00181 CQuadGridClusterCase &oldCase= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o8">_QuadGridClusterCases</a>[ (<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>-<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o5">_Y</a>)*<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o6">_Width</a> + (<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>-<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o4">_X</a>) ];
00182
00183 newCase= oldCase;
00184 }
00185 }
00186 }
00187
00188 <font class="comment">// just copy from new.</font>
00189 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o8">_QuadGridClusterCases</a>= newQuadGridClusterCases;
00190 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o4">_X</a>= newX0;
00191 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o5">_Y</a>= newY0;
00192 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o6">_Width</a>= newWidth;
00193 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o7">_Height</a>= newHeight;
00194 }
00195 }
00196
00197
00198 <font class="comment">// ***************************************************************************</font>
<a name="l00199"></a><a class="code" href="classNL3D_1_1CQuadGridClipManager.html#a5">00199</a> <font class="keywordtype">bool</font> CQuadGridClipManager::linkModel(CTransformShape *pTfmShp, CClipTrav *pClipTrav)
00200 {
00201 <font class="comment">// use the position to get the cluster to use.</font>
00202 CAABBox box;
00203 pTfmShp->getAABBox (box);
00204 <font class="keywordtype">float</font> distModelMax = pTfmShp->getDistMax();
00205
00206 <font class="comment">// Transform the box in the world</font>
00207 <font class="keyword">const</font> CMatrix &wm = pTfmShp->getWorldMatrix();
00208 <font class="comment">// compute center in world.</font>
00209 CVector cLocal = box.getCenter();
00210 CVector cWorld = wm * cLocal;
00211 <font class="comment">// prepare bbox.</font>
00212 CAABBox worldBBox;
00213 worldBBox.setCenter(cWorld);
00214 CVector hs = box.getHalfSize();
00215
00216 <font class="comment">// For 8 corners.</font>
00217 <font class="keywordflow">for</font>(uint i=0;i<8;i++)
00218 {
00219 CVector corner;
00220 <font class="comment">// compute the corner of the bbox.</font>
00221 corner= cLocal;
00222 <font class="keywordflow">if</font>(i&1) corner.x+=hs.x;
00223 <font class="keywordflow">else</font> corner.x-=hs.x;
00224 <font class="keywordflow">if</font>((i/2)&1) corner.y+=hs.y;
00225 <font class="keywordflow">else</font> corner.y-=hs.y;
00226 <font class="keywordflow">if</font>((i/4)&1) corner.z+=hs.z;
00227 <font class="keywordflow">else</font> corner.z-=hs.z;
00228 <font class="comment">// Transform the corner in world.</font>
00229 corner = wm * corner;
00230 <font class="comment">// Extend the bbox with it.</font>
00231 worldBBox.extend(corner);
00232 }
00233
00234
00235 <font class="comment">// Position in the grid.</font>
00236 sint <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>,<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>;
00237 <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>= (sint)floor( cWorld.x / <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o1">_ClusterSize</a>);
00238 <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>= (sint)floor( cWorld.y / <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o1">_ClusterSize</a>);
00239
00240 <font class="comment">// verify if IN the current grid of clusters created.</font>
00241 <font class="keywordflow">if</font>( <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>>=<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o4">_X</a> && x<_X+_Width && y>=<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o5">_Y</a> && <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a><<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o5">_Y</a>+<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o7">_Height</a> )
00242 {
00243 CQuadGridClusterCase &clusterCase= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o8">_QuadGridClusterCases</a>[ (<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>-<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o5">_Y</a>)*<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o6">_Width</a> + (<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>-<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o4">_X</a>) ];
00244 <a class="code" href="debug_8h.html#a6">nlassert</a>( <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o3">_MaxDists</a>.size()+1 == clusterCase.QuadGridClipClusters.size() );
00245
00246 <font class="comment">// search the best cluster.</font>
00247 uint bestCluster;
00248 <font class="keywordflow">if</font>(distModelMax==-1)
00249 {
00250 bestCluster= clusterCase.QuadGridClipClusters.size()-1;
00251 }
00252 <font class="keywordflow">else</font>
00253 {
00254 <a class="code" href="debug_8h.html#a6">nlassert</a>(distModelMax>=0);
00255 <font class="comment">// search in which cluster against we must test.</font>
00256 uint i;
00257 <font class="keywordflow">for</font>(i=0; i<clusterCase.QuadGridClipClusters.size()-1;i++)
00258 {
00259 <font class="keywordflow">if</font>(distModelMax<=<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o3">_MaxDists</a>[i])
00260 <font class="keywordflow">break</font>;
00261 }
00262 <font class="comment">// NB: interval [?? , +oo[, if i==clusterCase.QuadGridClipClusters.size()-1;</font>
00263 bestCluster= i;
00264 }
00265
00266 <font class="comment">// extend the bbox of this cluster.</font>
00267 clusterCase.QuadGridClipClusters[bestCluster]->extendCluster(worldBBox);
00268 <font class="comment">// link the model to this cluster.</font>
00269 pClipTrav->link(clusterCase.QuadGridClipClusters[bestCluster], pTfmShp);
00270
00271
00272 <font class="keywordflow">return</font> <font class="keyword">true</font>;
00273 }
00274 <font class="keywordflow">else</font>
00275 {
00276 <font class="keywordflow">return</font> <font class="keyword">false</font>;
00277 }
00278
00279 }
00280
00281
00282 <font class="comment">// ***************************************************************************</font>
<a name="l00283"></a><a class="code" href="classNL3D_1_1CQuadGridClipManager.html#c0">00283</a> <font class="keywordtype">void</font> CQuadGridClipManager::deleteCaseModels(CClipTrav *pClipTrav, sint <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>, sint <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>)
00284 {
00285 <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>>=<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o4">_X</a> && x<_X+_Width && y>=<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o5">_Y</a> && <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a><<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o5">_Y</a>+<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o7">_Height</a>);
00286
00287 CQuadGridClusterCase &clusterCase= <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o8">_QuadGridClusterCases</a>[ (<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>-<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o5">_Y</a>)*<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o6">_Width</a> + (<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>-<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o4">_X</a>) ];
00288 <font class="keywordflow">for</font>(uint j=0; j<clusterCase.QuadGridClipClusters.size(); j++)
00289 {
00290 CQuadGridClipCluster *cluster= clusterCase.QuadGridClipClusters[j];
00291
00292 <font class="comment">// first, unlink all sons from cluster, and link thems to RootCluster.</font>
00293 IModel *son= pClipTrav->getFirstChild(cluster);
00294 <font class="keywordflow">while</font>( son != NULL )
00295 {
00296 <font class="comment">// unlink from us.</font>
00297 pClipTrav->unlink(cluster, son);
00298 <font class="comment">// link to the rootCluster</font>
00299 pClipTrav->link(pClipTrav->RootCluster, son);
00300
00301 <font class="comment">// next son.</font>
00302 son= pClipTrav->getFirstChild(cluster);
00303 }
00304
00305 <font class="comment">// delete the cluster.</font>
00306 <a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o0">_Scene</a>->deleteModel(cluster);
00307 }
00308
00309 <font class="comment">// NB: do not delete array for alloc/free optimisation.</font>
00310 }
00311
00312
00313 <font class="comment">// ***************************************************************************</font>
<a name="l00314"></a><a class="code" href="classNL3D_1_1CQuadGridClipManager.html#c1">00314</a> <font class="keywordtype">void</font> CQuadGridClipManager::newCaseModels(CQuadGridClusterCase &clusterCase)
00315 {
00316 <font class="comment">// resize of the number of bbox per distance.</font>
00317 clusterCase.QuadGridClipClusters.resize(<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o3">_MaxDists</a>.size()+1);
00318
00319 <font class="comment">// create clusters.</font>
00320 <font class="keywordflow">for</font>(uint i=0; i<clusterCase.QuadGridClipClusters.size(); i++)
00321 {
00322 <font class="comment">// create the cluster.</font>
00323 CQuadGridClipCluster *cluster= (CQuadGridClipCluster*)<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o0">_Scene</a>->createModel(<a class="code" href="namespaceNL3D.html#a224">QuadGridClipClusterId</a>);
00324 clusterCase.QuadGridClipClusters[i]= cluster;
00325 <font class="comment">// disable it from HRC</font>
00326 CHrcTrav *hrcTrav= (CHrcTrav*)<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o0">_Scene</a>->getTrav(<a class="code" href="namespaceNL3D.html#a41">HrcTravId</a>);
00327 hrcTrav->link(<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o0">_Scene</a>->getSkipModelRoot(), cluster);
00328 <font class="comment">// NB: disabled from validation in CQuadGridClipCluster::update()</font>
00329 <font class="comment">// Hence it will be never traversed but in ClipTrav.</font>
00330
00331 <font class="comment">// link it in RootCluster, so it may be clipped in city etc...</font>
00332 CClipTrav *clipTrav= (CClipTrav*)<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o0">_Scene</a>->getTrav(<a class="code" href="namespaceNL3D.html#a25">ClipTravId</a>);
00333 clipTrav->unlink(NULL, cluster);
00334 clipTrav->link(clipTrav->RootCluster, cluster);
00335
00336
00337 <font class="comment">// init distMax</font>
00338 <font class="keywordflow">if</font>(i<<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o3">_MaxDists</a>.size())
00339 clusterCase.QuadGridClipClusters[i]->setDistMax(<a class="code" href="classNL3D_1_1CQuadGridClipManager.html#o3">_MaxDists</a>[i]);
00340 <font class="keywordflow">else</font>
00341 clusterCase.QuadGridClipClusters[i]->setDistMax(-1);
00342 }
00343 }
00344
00345
00346 } <font class="comment">// NL3D</font>
</pre></div>
<!-- footer -->
<BR><FONT Size=+5> </FONT>
</TD>
<TD WIDTH=15><IMG SRC=/inc/img/pixel.gif WIDTH=15 HEIGHT=15 BORDER=0 ALT=""></TD>
</TR>
</TABLE>
</BODY>
</HTML>
|
